2012-05-18 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* tree-ssa-reassoc.c (bip_map): Remove decl.
(completely_remove_stmt): Remove function.
(remove_def_if_absorbed_call): Remove function.
(remove_visited_stmt_chain): Remove __builtin_powi handling.
(possibly_move_powi): Remove function.
(rewrite_expr_tree): Remove calls to possibly_move_powi.
(rewrite_expr_tree_parallel): Likewise.
(attempt_builtin_powi): Build multiplies explicitly rather than
relying on the ops vector and rank system.
(transform_stmt_to_copy): New function.
(transform_stmt_to_multiply): Likewise.
(reassociate_bb): Handle leftover operations after __builtin_powi
optimization; build a final multiply if necessary.
From-SVN: r187652
